Fabrication of the Superhydrophobic Surface on Magnesium Alloy and Its Corrosion Resistance

Zhang, Chang-Lei; Song, Liang; Zeng, Rong‐Chang; Li, Shuoqi; Cui, Hongzhi

doi:10.1016/j.jmst.2015.09.003

Cited by 94 publications

(24 citation statements)

References 40 publications

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“…The potential was referred to a saturated calomel electrode (SCE); the counter electrode was a platinum sheet and working electrode was samples. Prior to measurement, the specimens were exposed to the corrosion solution at open circuit potential for 20 min to ensure the stabilization potential [12,18,19], then the polarization scan was executed at a rate of 1 mV/S at room temperature, EIS measurements were conducted from 10 KHz down to 0.1 Hz using 10 mV amplitude sinusoidal perturbations. All the electrochemical tests were repeated twice to obtain reproducibility of results.…”

Section: Composition Thickness and Propertymentioning

confidence: 99%

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Rong

Sun

et al. 2016

Metals

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Abstract:Composite titanium carbonitride (TiCN) thin films deposited on AZ31 by DC/RF magnetron sputtering were vacuum annealed at different temperatures. Vacuum annealing yields the following on the structure and properties of the films: the grain grows and the roughness increases with an increase of annealing temperature, the structure changes from polycrystalline to single crystal, and the distribution of each element becomes more uniform. The residual stress effectively decreases compared to the as-deposited film, and their corrosion resistance is much improved owing to the change of structure and fusion of surface defects, whereas the wear-resistance is degraded due to the grain growth and the increase of surface roughness under a certain temperature.

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Section: Composition Thickness and Propertymentioning

confidence: 99%

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Rong

Sun

et al. 2016

Metals

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Section: Introductionmentioning

confidence: 99%

“…In recent years, more researchers are paying attention to SH surfaces . Among them, the metal oxide SH films on metal surfaces were studied extensively because of its simple preparation and excellent hydrophobicity . However, when they are used in an environment suffering from acid rain, the metal oxide layer will easily react with H + in the rain water and this can erode the micro‐nano structure, leading to the loss of its hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface

Dou

Wang

et al. 2018

Materials & Corrosion

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In marine and industrial environments, salts and aggressive contaminants in water may cause corrosion and degradation, including acid corrosion and erosion. Super‐hydrophobic (SH) metal oxide films can keep surfaces dry by expelling water droplets. This inhibits corrosion. However, acid rain can dissolve the metal oxide films. Thus, it is necessary to protect SH films against acid erosion. In this work, a WO3 film was added on top of CuO‐coated SH copper surface using electrochemical deposition. The composite SH CuO‐WO3 film exhibited a strong acid resistance. After 48 h immersion in 0.2 N sulfuric acid, the film retained its nearly perfect micro‐nano structure with a static water contact angle of 160 ± 2°. After acid erosion, the corrosion rate in a 3.5% (w/w) NaCl solution was tested using potentiodynamic polarization curves. Its corrosion current density was found to be four orders of magnitude lower compared with CuO‐coated copper. This kind of acid resistant SH surfaces with much enhanced ability against atmospheric oxygen corrosion in the presence of salty water have potential applications in marine and other industrial environments.

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“…Generally, a self-cleaning surface can be made by means of the preparation of hierarchical structures [29] and self-assembly of organic compounds, such as fluoroalkylsilane with low surface energy [30]. Our group [31] fabricated the superhydrophobic surface on the AZ31 alloy by the combination of the hydrothermal treatment method and post-modification with stearic acid. Gao's group [32] obtained the superhydrophobic surface on the fibrous szaibelyite-coated AZ31 Mg alloy by the integration of hydrothermal synthesis and fluoroalkylsilane (FAS) modification.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of the Superhydrophobic Mg(OH)2/Mg-Al Layered Double Hydroxide Coatings on Magnesium Alloys

Zhang

Zeng

et al. 2016

Metals

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Abstract:Coatings of the Mg(OH) 2 /Mg-Al layered double hydroxide (LDH) composite were formed by a combined co-precipitation method and hydrothermal process on the AZ31 alloy substrate in alkaline condition. Subsequently, a superhydrophobic surface was successfully constructed to modify the composite coatings on the AZ31 alloy substrate using stearic acid. The characteristics of the composite coatings were investigated by means of X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electronic microscope (SEM) and contact angle (CA). The corrosion resistance of the coatings was assessed by potentiodynamic polarization, the electrochemical impedance spectrum (EIS), the test of hydrogen evolution and the immersion test. The results showed that the superhydrophobic coatings considerably improved the corrosion resistant performance of the LDH coatings on the AZ31 alloy substrate.

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Fabrication of the Superhydrophobic Surface on Magnesium Alloy and Its Corrosion Resistance

Cited by 94 publications

References 40 publications

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface

Corrosion Resistance of the Superhydrophobic Mg(OH)2/Mg-Al Layered Double Hydroxide Coatings on Magnesium Alloys

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Fabrication of the Superhydrophobic Surface on Magnesium Alloy and Its Corrosion Resistance

Cited by 94 publications

References 40 publications

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Microstructure, Residual Stress, Corrosion and Wear Resistance of Vacuum Annealed TiCN/TiN/Ti Films Deposited on AZ31

Strong acid resistance from electrochemical deposition of WO3 on super‐hydrophobic CuO‐coated copper surface

Corrosion Resistance of the Superhydrophobic Mg(OH)2/Mg-Al Layered Double Hydroxide Coatings on Magnesium Alloys

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Strong acid resistance from electrochemical deposition of WO₃ on super‐hydrophobic CuO‐coated copper surface